Home / 20,954.04-28,886.78-16,667.52

Finding the Fourth Proportional to 20,954.04, 28,886.78 and 16,667.52

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Solution

The fourth proportional to 20,954.04, 28,886.78 and 16,667.52 is: 22,977.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.04 : 28,886.78 = 16,667.52 : x
  2. Step 2: Convert to fraction form
    20,954.04/28,886.78 = 16,667.52/x
  3. Step 3: Cross multiply
    20,954.04x = 28,886.78 × 16,667.52
  4. Step 4: Simplify right side
    20,954.04x = 481,470,983.39
  5. Step 5: Solve for x
    x = 481,470,983.39/20,954.04
  6. Step 6: Final answer
    x = 22,977.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.